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Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
Arch Neurol. Author manuscript; available in PMC 2010 December 1.
Published in final edited form as:
Arch Neurol. 2009 December; 66(12): 1469–1475.
doi: 10.1001/archneurol.2009.269

Table 1

Characteristics of 159 Cognitively Normal Individuals

Mean (SD)%
Age (y)71.5 (8.6)
African American10.7
Education (y)15.6 (2.5)
APOE ε4 carrier31.5
MMSE score29.0 (1.2)
Years follow-up2.4 (1.3)

Legend: SD=standard deviation; y=years; APOE ε4 indicates the ε4 allele of APOE; MMSE=MiniMental State Examination, where the range of scores is from 30 (best) to 0 (worst).